<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->
    <el-card>
  <el-alert
    title="添加商品信息" type="warning" center show-icon :closable="false">
   </el-alert>

   <!-- 进度条 -->
    <el-steps align-center  :active="activeIndex-0" finish-status="success" >
  <el-step title="基本信息"></el-step>
  <el-step title="商品参数"></el-step>
  <el-step title="商品属性"></el-step>
  <el-step title="商品图片"></el-step>
  <el-step title="商品内容"></el-step>
  <el-step title="完成"></el-step>
   </el-steps>
   <!-- 左侧导航 -->
   <el-form ref="form" :model="addForm" :rules="addFormRules" label-width="80px" label-position="top">
  <el-tabs v-model="activeIndex" :tab-position="'left'"  :before-leave="beforeLeave" @tab-click="tabClicked">
    <el-tab-pane label="基本信息" name="0">
      <el-form-item label="商品名称" prop="goods_name">
        <el-input v-model="addForm.goods_name"></el-input>
      </el-form-item>
      <el-form-item label="商品价格" prop="goods_price">
        <el-input v-model="addForm.goods_price" type="number"></el-input>
      </el-form-item>
      <el-form-item label="商品重量" prop="goods_weight">
        <el-input v-model="addForm.goods_weight"></el-input>
      </el-form-item>
      <el-form-item label="商品数量" prop="goods_number">
        <el-input v-model="addForm.goods_number"></el-input>
      </el-form-item>
       <el-form-item label="商品分类" prop="goods_cat">
      <el-cascader active-item-change="hover"
    :options="cateList"
    :props="cateProps"
    @change="handleChange"
    v-model="addForm.goods_cat">
    </el-cascader> 
       </el-form-item>
    </el-tab-pane>

    <el-tab-pane label="商品参数" name="1">
      <!-- 商品参数属性 -->
      <el-form-item :label="item.attr_name" v-for="item in manyTableDate" :key="item.attr_id">
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox :label="cb" v-for="(cb, i) in item.attr_vals" :key="i" border></el-checkbox>
              </el-checkbox-group>
      </el-form-item>
    </el-tab-pane>
    <el-tab-pane label="商品属性" name="2">
      <!-- 商品静态属性 -->
      <el-form-item :label="item.attr_name" v-for="item in onlyMess" :key="item.attr_id">
         <el-input v-model="item.attr_vals"></el-input>
      </el-form-item>
    </el-tab-pane>
    <el-tab-pane label="商品图片" name="3">
      <!-- 商品图片 -->
      <el-upload
  :action="uploadURL"
  :on-preview="handlePreview"
  :on-remove="handleRemove"
  :headers="headerObj"
  list-type="picture" :on-success="handleSuccess">
  <el-button size="small" type="primary">点击上传</el-button>
  <div slot="tip" class="el-upload__tip">只能上传jpg/png文件，且不超过500kb</div>
</el-upload>
      </el-tab-pane>
    <el-tab-pane label="商品内容" name="4">
      <!-- 文本编译器 -->
      <quill-editor v-model="addForm.goods_introduce"> </quill-editor>
      <el-button type="primary" class="btnAdd" @click="add">添加商品</el-button>
    </el-tab-pane>
  </el-tabs>
   </el-form>
    </el-card>

    <!-- 图片预览 -->
 <el-dialog
  title="图片预览"
  :visible.sync="previewVisible"
  width="50%"
  >
 <img :src="previewPath" alt="">
</el-dialog>

  </div>
</template>

<script>
import _ from 'lodash'

export default {
  data(){
    return{
      activeIndex:0,
      //添加商品的表单数据对象
      addForm:{
        goods_name:'',
        goods_price:0,
        goods_weight:0,
        goods_number:0,
        goods_cat:[],
        pics:[],
        goods_introduce:''
        
      },
      previewPath: '',
      previewVisible: false,
      //动态属性列表
      manyTableDate:[],
      //静态属性列表
      onlyMess:[],
      cateList:[],
      //上传图片的url
      uploadURL:'http://115.159.143.20:8888/api/private/v1/upload',

      headerObj:{
        Authorization:window.sessionStorage.getItem('token'),
      },
      addFormRules:{
        goods_name:[
          {required:true,message:'请输入商品名称',trigger:'blur'},
        ],
        goods_price:[
          {required:true,message:'请输入商品价格',trigger:'blur'},
        ],
        goods_weight:[
          {required:true,message:'请输入商品重量',trigger:'blur'},
        ],
        goods_number:[
          {required:true,message:'请输入商品重量',trigger:'blur'},
        ],
        goods_cat:[
          {required:true,message:'请输入商品重量',trigger:'blur'},
        ]
      },
  
      cateProps:{
        label:'cat_name',
        value:'cat_id',
        children:'children'
      }
    }
  },
  created(){
    this.getCateList()
  },
  methods:{
   async  getCateList(){
         const{data: res}= await this.$http.get('categories')
         if(res.meta.status!==200){
           return this.$message.error('获取商品列表分类数据失败')
         }
         this.cateList = res.data
         
    },
    handleChange(){
      if(this.addForm.goods_cat.length !==3 ){
        this.addForm.goods_cat=[]
      }
    },
    beforeLeave(activeName,oldActiveName){
      if(oldActiveName==='0'&&this.addForm.goods_cat.length!==3){
        this.$message.error('请选择商品分类')
        return false
      }
    },
   async  tabClicked(){
   
    if (this.activeIndex === '1') {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          {
            params: { sel: 'many' }
          }
        )

        if (res.meta.status !== 200) {
          return this.$message.error('获取动态参数列表失败！')
        }

        console.log(res.data)
        res.data.forEach(item => {
          item.attr_vals =
            item.attr_vals.length === 0 ? [] : item.attr_vals.split(',')
        })
        this.manyTableDate = res.data
    }else if(this.activeIndex==='2')
    {
      const { data:res }= await this.$http.get(`categories/${this.cateId}/attributes`,{params:{sel:'only'}
      }
    )
    if (res.meta.status !== 200) {
          return this.$message.error('获取动态参数列表失败！')
        }
     this.onlyMess=res.data
    }
    },
    handlePreview(file){
      //上传路径默认为本机
     console.log(file)
     this.previewPath=file.response.data.url
     this.previeVisibl=true
    },
    handleRemove(){
     const filePath = file.response.data.tmp_path
     this.addForm.pics.findIndex(x=>x.pic===filePath)
     this.addForm.pics.splice(i,1)
     console.log(this.addForm)
    },
    handleSuccess(response){
     this.addForm.pics.push(response.data.tmp_path),
     console.log(this.addForm)
    },
    // add(){
    //   this.$refs.addFormRef.validate(valid=>{
    //     if(!valid){
    //       return this.$message.error('请填写必要的表单项')
    //     }
    //     //执行添加业务
    //   //  const form = _.cloneDeep(this.addForm)
    //   //  console.log(form)
    //   //   form.goods_cat = form.goods_cat.join(',')

    //   })
    // }

    
  },

  computed:{
      cateId() {
      if (this.addForm.goods_cat.length === 3) {
        return this.addForm.goods_cat[2]
      }
      return null
    }
  }
}
</script>

<style  scoped>

.btnAdd{
  margin-top:15px;
}
</style>

previeVisible